Extension bed



March l2, 1929. c, J. K|NDEL ET AL 1,704,858

EXTENSION BED Filed June 14I 192e E s sheets-sheet 1 l 3/ 32 l"K10 l I7 6g 2l j l W Nv I e 3l 7/ lull" n Y /l9 /9/ Z3 E i 0/ l 29 397;; .1

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March l2, 1929.

lc. J. KINDr-:L ET AL EXTENSIONBED Filed June 14, 1926 3 Sheets-Sheet mv. b A K v .0 b u ummm e Km m e o vTuL mswfm, MM? mm GH# 5 Sheets-Sheep c. J. KINDEL. ET AL.

EXTENSION BED Filed June 14,"1926 March 12, 1929.

Patented Mar. 12, 1929.

PATENT OFFICE.

CHARLES J. KINDEL AND HENRY W. LUNDBERG,

SIGNORE T0 FOOTE-REYNOLDS COMPANY, OF

IPORATION 0F MICHIGAN.

0F GRAND RAPIDS, MICHIGAN, .AS- GRAND RAPIDS, MICHIGAN, A COR- EXTENSION BED.

Application tiled `Tune 14,

This invention relates to an extension bed and, more particularly, to a bed which is provided with two separate and distinct spring structures,l one of which in the contracted form of the bed is located. under-l neath the other but which may be extended and then elevated into the' same plane with said'other and upper spring, a mattress normally folded and carried upon the upper 1o spring in the contracted position of the bed being unfolded so as to cover both springs.

The present invention is concerned with the simple and economical production of a construction of Athe type described which may be of double bed width when it is to be used as a bed and then contracted to one half of said width during the day when it is not in use, with consequent saving of space. This is a matter of importance in a great many places, particularly in apartments' where space is a matter of considerable import.

The invention consists in many novel details of construction and arrangement of parts for effectively attaining the ends stated all of which, together with many others not at this time specifically set forth, will appear as understanding is had of the invention from the following description taken in connection with the accompanying drawings,- in which Fig. 1 is a transverse vertical section through the structure when extended for use as a double bed.

Fig. 2 is a like section showing the same when not in use, the width thereof being reduced one half.

Fig. 3 is a plan view of the bed structure, the springs being removed so as to fully show the construction and `the means whereby the extension frame is equalized in its inward and outward movements.

Fig. 4 is a front elevation of the lower part of the bed with the lower spring positioned underneath the upper spring, the front covering panel being removed to disclose the construction, and t 5 is a view similar to Fig. 4 the lower spring being moved outwardly and elevated to u per position.

Li e reference characters refer to like parts in the several figures of the drawings.

In the construction of the bed a bed frame -is provided having ends each of which in- 1926. Serial No. 115,837.

cludes two spaced apart vertical posts 1 connected in an suitable manner by cross members 2 whichI may be of various types and designs. Adjacent the inner corner of each of the posts a vertically positioned block 3 is securedv around which is placed and secured vertical angle bars 4. Between the rear posts 1 of the bed frame a panel 5 is located and in practice is detachably connected to the posts between which it is disposed so that, for shipment, the construction may be knocked down to occupy as littlespace as possible.

Between the ends of the bed frame a horizontal frame, preferably made of commercial forms of iron, is disposed. It includes an upper rectangular frame member havin a rear angle bar 6, a front angle bar parallel thereto, two parallel end connecting bars 8 with diagonal braces 9 at the corners of the frame member for holding the same rigid. Directly below the bar 6 and spaced a distance therefrom is a` second angle bar 6a paralleling the bar 6 and forming the rear side of a second rectangular frame member which is completed by two end angle bars 8ZL lying directly belowthe bars 8 and a front Hat bar 10 which is located in a plane a short distance back of the upper bar 7.

The upper and lower rectangular frame members are connected together by vertical angles 11 which areA permanently secured to the bars 8 and 8ZL a short distance inward from each end thereof and so located that their outwardly extending flanges will pass alongside'of the flanges of the angle' bars 4, previously described. Headed pins 12 projecting from the fianges of the angle bars 4 to be received in suitable slots cut in the outwardly extending langes of the angle bars 11. This specifically forms no part of the present invention but is fully disclosed in a copending application for Patent Serial N o. 117,573, tiled June 21, 1926, by Charles J. Kin'dcl.

The upper frame member comprised of the bars', 7, and 8 serves as a support for a spring structure 13 above which a mattress 1 4 may be placed. A second mattress l5 is connected at one edge to the front edge of the mattress 14 by a strap or band -16 whereby the mattress 15 may be readily folded over to lie above the mattress 14, as shown in Fig. 2.

It is evident that the space between the upper and lower rectangular frame members is open at the front side and in said space an extension frame is mounted so that it may be drawn outwardly when desired or pushed back so as to lie entirely within the space. This extension frame is of rectangular form also. It is made of front and rear parallel angle bars 17 connected by end bars 18 while at each corner a vertical post 19 also of angle bar form is permanently secured at its lower end, the same extending upwardl nearly to the lower side of the bars 8 o the first described upper rectangular frame member. A t the front side of the extension frame a panel 20 is located and permanently secured to the front posts 19 it having substantially the same form and appearance as the rear` panel 5, previously described. Casters 21 are secured at the front corners of the extension frame to permit its easy outward and inward movement, it being understood that the inwardly cxtending portions of the extension frame are carried on the bars 8a which serve as supporting guides therefor. The inward and outward movement of the extension frame is equalized by means of the following structure Two links 22 are pivotally connected at their rear ends to the flat bar 10, as best shown in Fig. 3. Two additional links 231.

are pivotally connected at their front ends to the front bar 17 and'are pivotally connected at their rear ends to the links 22 a short distance back of the front ends of said links. The projecting forward portions of the links 22 extending beyond carry stops' 22a which in the fully extended position of the extension frame come avainst edges of the links 231, as shown in Fig. 3, and limit the outward movement of the extension frame. A connecting bar 241 is disposed between the pivotal points of connection of the links 22 and 231, all being fully shown in Fig. 3. With this structure the extension frame may be moved inward and outward very readily and each end thereof will move in unison with the other and have an equal movement.

On the extension frame a vertically adjustable spring carrying frame is mounted. This spring carrying frame is of rectangular form having longitudinal spaced apart rear and front angle bars 23 connected at their ends by parallel end bars 24, the ends of which overlap the horizontal anges of the bars 17 of the extension frame. All of the rectangular frame members described are 'provided with diagonal braces at their corners like the braces 9 first described. A spring structure 25 is carried by the spring supporting frame, it being of the same type as the spring structure 13.

The spring carrying frame with the spring 'in vertical alignment.

one end to the vertical flanges of each of the bars 23, the pivotal points of connection of the links 26 and 27 being substantially The links 26 and 27 are pivotally connected together, and each link 27 is formed with a curved extension 27CL beyond the point where it is pivotally connected to the link 26. Adjacent the opposite end of each of the bars 23 'another link 28 is pivotally connected at one end and at their opposite ends these links are pivotally connected to bars 29 which at their lower ends are pivotally connected to the vertical flanges ot the bars 17. The bars.

29, as shown in Fig 5, extend upwardly from the bars 17 ,are thence reversely curved as indicated at 30 and then extend upwardly as at 31 there being a -connecting board 32 between the 'upper ends of the extensions 31 which lies transverselyo the length of the spring 25. In lower position the bars 3l are as shown in Fig. 4, and the connecting cross board 32 lies against the upper side of the spring structure 25. Long connecting rods 33, one at each side of the sprinr supporting frame, connect the ends` 27a of links 27 with the curved sections 30 of bars 29, as shown in Fig. 5.

The bed being in contracted position, as shown in Fig. 2, it is necessary merely to withdraw the extension frame by pulling outward on the panell 20 until the stops 22 engage against the links 231. Then the lcross board 32 is grasped and turned from the position shown in-Fig. 4, upwardly and to the right to the position indicated in Fig. 5. This will cause a straightening of the toggles made by links 28 and 29 and, simultaneously, by reason of the connection made by the bars 33, the toggles made by links 26 and 27 will be straightened lifting the spring carrying frame and the spring 25 to the upper position' shown in Fig. 5. The 'engagement ofsections 30 of the bars 29 with the ends of bars 24 limits the extent of upward movement and when this occurs the knuckles of the toggles willl have passed from one side to the other of their dead center lines so that the a plication of weight to the springs 25 Wi 1 have no effect except'to force said sections 30 more strongly against'the bars 24. The board 32 will then be in substantial vertical position and may serve to all intents and purposes as Va head board for-the bed. At least, it will not be in the way. The mattress 15 is unfolded from the mattress 14 so as to lieA upon the spring 25 or in the position shown in Fig. 1.

To lower the spring 25 and its supporting frame it is necessary merely to reverse the operation, that is, grasp the board 32 and move it from the position shown in Fig; 5 downwardly and to the left, the spring supporting frame lowering on this movement. rIhe angle posts19 serve as guides for the upward and downward movements of the spring supporting frame. It will be noted that on the clockwise movement. of the extensions 31 to links 29 from the position shown in Fig. 4 to that shown in Fig. 5, there is an apparent application of force to the links 28 which would serve to move the spring supporting frame to the right against the right hand posts 19. This, however, is neutralized by reason of the links 26 which extend from their end pivot points to the left to connect to the links 27. The spring 25 with its supporting. frame will move vertically upward and downward without any endwise movement which would bring the spring supporting frame frictionally against any of the vertical guide posts 19.

The construction described is simple, durable and practical. A double width bed is produced and one which when not in use may be contracted to fifty per cent of its width when in use. This bed construction has been fully developed and tested and has proved thoroughly practical in actual practice. The invention is defined in the appended claims and is to be considered as comprehensive of all forms of structure coming within their scope.

We claim:

l. In a-bed having a stationary frame adapted to carry a spring, an extension frame mounted below said stationary `frame and movable outward and inward with respect to the same, a sprino carrying frame carried by said extension Frame on which a second spring may be carried, vertical guides at the corners of the extension frame within which the spring carrying frame is located, a pair of toggle links pivotally connected together at each end and at each side of the spring carrying frame, one of the links of each pair being pivotally connected at its end to said spring carrying frame and the other link of each pair of links being pivotally connected to the extension frame, said links connected to the extension frame at one end thereof being extended beyond their points of pivotal connection to their companion links, a bar disposed between and connected to the ends of said extensions adapted to be manually engaged to thereby straighten the two pairs of links at one end of the said frames, and an elongated link at each side of the extension frame connecting the toggle links together whereby manual operation of the pairs of toggle links at one end of said frames will simultaneously and equally operate said pairs of links at the other end of said frames, substantially as described. f

2. In combination with a bed having a horizontal supporting trame, and a horizontal spring carrying frame vertically movable relative thereto, a long lever pivotally connected to the supporting frame near one of its ends, a corresponding long lever ivotally connected to the spring carrying rame near its opposite end, short ylevers pivotally connected respectively to the spring carrying frame and to the supporting frame near their respective ends, said short levers being pivotally connected to said long levers intermediate their ends, a connecting rod connecting the respective free ends of the. long levers for the purpose of effecting vertica movement of the spring supporting frame and counteracting longitudinal thrust thereof.

3. In combination with a bed having a horizontal supporting frame and a horizontal spring carrying frame vertically movable relative thereto, pairs of toggle levers connected to the supporting frame and spring carrying frame at opposite sides and near the respective ends thereof, one of the arms ot' each pair of toggle levers near one end of the bed and at opposite sides thereof being extended upward and connected by a cross member to provide a folding head rest for the bed and an operating member for the toggle links, and connecting rods connecting the toggle levers at opposite sides of the bed whereby, they are simultaneously operated.

4. In a bed having a horizontal supporting frame and a horizontal spring carrying frame vertically movable relative thereto, a long lever pivotally connected to each side of the supporting frame near one of its ends, said long levers extending upward and being provided with a cross member to serve as a folding head rest and actuating member, a long lever pivotally connected at each side of the spring carrying frame near its ends opposite the irst mentioned levers, short levers. ivotally connected to the respective sides oi) the supporting frame and the sprin carrying frame and also pivotally connected to and between theends of each of said lon levers and connecting rods connected to sai long levers beyond their points of connection with the short levers at the respective sides of the structure whereby all of the pairs of levers will be caused to move simultaneously to effect raising of the spring carr in frame withoutv tendency for longitu ina movement. i 'y In testimonywhereof we affix our signatures.

CHARLES J. KINDEL. HENRY W. LNDBERG. 

